html{
    width: 1600px;

    body{
        width: 100%;
        background-color: #000;
        .mine{
            width: 50px;
            height: 50px;
            background: url("../images/我方坦克.png");
            background-size: 100% 100%;
            position: absolute;
            bottom: 0px;
            left: 50%;
            transform: translate(-50%,0);
        }
        .enemy{
            width: 50px;
            height: 50px;
            background: url("../images/敌军坦克.png");
            background-size: 100% 100%;
            position: absolute;
            top: 0;
            left: 0;
        }
        .pd{
            position: absolute;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: #fff;
        }
        .reset{
            position: absolute;
            top: 20px;
            right: 40px;
        }
    }
}